Question

describe the advantages and disadvantages of cross pollination to plant.

Answer 1

Disadvantages of cross pollination: It is not always certain as a pollinatingagent is always required, and it may or may not be available at the suitable time. Pollen grains have to be produced in abundance to ensure chances of pollination. This results in lot of wastage of pollen.

Answer 2

FULL ANSWER

Cross pollination is one way in which plants reproduce. There are many advantages to this method, the foremost is introducing genetic diversity to the plant, which keeps is resistant to disease. According to How Stuff Works, cross pollination is necessary to produce hybrid plants and flowers, which keeps the species strong.

Of course, there are also many disadvantages to cross pollination. For one, Diffen points out that it prevents uniform progeny and the purity of the genetic pool. It is also hard to guarantee cross pollination. In some cases this means that there is too much distance between plants or not enough pollinators, like bees or other insects, to do the job.

Some plants, such as willows, have to be cross-pollinated because the male and female flowers are not on the same plants. In tropical regions, cross pollination occurs via hummingbird, rodents, bats and even lemurs. Occasionally snails act as cross pollinators. Some plants are pollinated by water and wind.